Multicast broadcast service (MBS) service connection method and device, equipment and storage medium

Abstract

Embodiments of the present application provide a multicast broadcast service (MBS) connection method, device and equipment, and a computer readable storage medium, relating to the technical field of communication. The method comprises: receiving configuration information from a network side device by a UE; determining a first candidate cell; if the first candidate cell does not support MBS service, triggering the UE to switch from a non-connected state to a connected state; and continuing to receive the MBS service by a unicast mode. If the possible reselection cell of the UE does not support the MBS service, the method of the embodiments of the present application triggers the UE to switch from the non-connected state to the connected state, and continues to receive the MBS service by the unicast mode, thereby avoiding the interruption of the MBS service.

Description

Technical Field

[0001] This application relates to the field of communication technology, and more specifically, to a method, apparatus, device, and computer-readable storage medium for connecting multicast broadcast (MBS) services. Background Technology

[0002] With the widespread adoption of Multicast Broadcast Service (MBS), if many User Equipment (UEs) need to receive MBS services, keeping all UEs in connected mode to receive MBS services would place a significant load on the network. Therefore, this paper proposes allowing UEs to receive MBS services even when inactive.

[0003] However, if the UE's current cell allows the UE to receive MBS services in a disconnected state, but the surrounding neighboring cells are either cells that do not support MBS services at all, or cells that only support MBS services in a connected state, then if a cell reselection occurs while the UE is in a disconnected state receiving MBS services, the MBS service being received will be interrupted. Summary of the Invention

[0004] This application provides a method, apparatus, device, and computer-readable storage medium for continuing multicast broadcast MBS service, which can solve the technical problem that MBS service is interrupted when the UE receives MBS in a non-connected state and cell reselection occurs, and the possible reselected cell does not support MBS service at all, or only supports MBS service received by the UE in a connected state.

[0005] Firstly, a method for connecting multicast broadcast MBS services is provided, applied to user equipment (UE), the method comprising:

[0006] The first candidate cell was determined;

[0007] If the first candidate cell does not support MBS service, the UE is triggered to switch from a disconnected state to a connected state.

[0008] Continue to receive MBS services via unicast.

[0009] In one implementation, the lack of support for MBS services includes one or more of the following: not supporting all MBS services and not supporting receiving MBS services in a non-connected state.

[0010] In another implementation, the method further includes:

[0011] Receive MBS-related configuration information sent by the network-side device, wherein the MBS-related configuration information includes: neighbor cell information that does not support MBS service, and the neighbor cell information includes: the neighbor cell identifier and / or the neighbor cell version identifier;

[0012] The first candidate cell is determined to not support MBS services through the following methods:

[0013] Based on the MBS-related configuration information, it is determined that the first candidate cell does not support MBS services.

[0014] In another implementation, the MBS-related configuration information further includes: indication information, which is used to indicate whether a specified cell supports MBS services;

[0015] Based on the MBS-related configuration information, it is determined that the first candidate cell does not support MBS services, including:

[0016] Based on the indication information, at least one neighboring cell that does not support the MBS service that the UE is currently receiving or is interested in is determined from the neighboring cells of the UE's current serving cell;

[0017] If the first candidate cell is included in the at least one neighboring cell, then it is determined that the first candidate cell does not support MBS service.

[0018] In another implementation, determining the first candidate cell includes:

[0019] Measure the neighboring cells of the UE's current serving cell;

[0020] A first candidate cell is determined based on the measurement results of the neighboring cells; or, a first candidate cell is determined based on the measurement results of the neighboring cells and the measurement results of the UE's current serving cell.

[0021] In another implementation, the MBS-related configuration information further includes: the first measurement threshold of the neighboring cell.

[0022] The step of determining the first candidate cell based on the measurement results of the neighboring cells includes:

[0023] Based on the measurement results of the neighboring cells and the MBS-related configuration information, cells whose measurement results are higher than a first measurement threshold of the neighboring cells are selected and determined as first candidate cells from the measured neighboring cells.

[0024] In another implementation, a first candidate cell is determined based on the measurement results of the neighboring cells, including:

[0025] Based on the measurement results of the neighboring cells, cells whose measurement results are higher than a preset threshold are selected and determined as the first candidate cells from the measured neighboring cells;

[0026] The preset threshold includes a measurement threshold determined according to the cell reselection evaluation rules.

[0027] In another implementation, the MBS-related configuration information also includes: scaling values ​​related to MBS.

[0028] Before determining the first candidate cell based on the measurement results of the neighboring cells, the method further includes:

[0029] Based on the scaling value associated with MBS, the first measurement threshold of the neighboring cell is adjusted to obtain the adjusted first measurement threshold of the neighboring cell; or...

[0030] Based on the scaling value related to MBS, the preset threshold is adjusted to obtain the adjusted preset threshold.

[0031] In another implementation, the configuration information is transmitted in any of the following ways:

[0032] System information;

[0033] MBS configuration information;

[0034] RRC dedicated signaling.

[0035] In another implementation, the UE transitions from a disconnected state to a connected state, including:

[0036] Trigger the process of establishing a Radio Resource Control (RRC) connection with the first candidate cell; or,

[0037] Trigger the process of restoring the RRC connection with the UE's current serving cell.

[0038] In another implementation, the process of establishing / restoring a Radio Resource Control (RRC) connection includes:

[0039] RRC connection establishment / recovery is triggered directly by the AS layer; or,

[0040] The AS requests the NAS to initiate / restore an RRC connection triggered by the NAS.

[0041] In another implementation, the process of triggering the establishment of a Radio Resource Control (RRC) connection with the first candidate cell includes:

[0042] Send an RRC establishment request message to the first candidate cell, the RRC establishment request message carrying a reason value related to MBS;

[0043] The process of triggering the restoration of the RRC connection with the UE's current serving cell includes:

[0044] Send an RRC recovery request message to the current serving cell, the RRC recovery request message carrying a cause value related to MBS.

[0045] In another implementation, the method further includes:

[0046] During the transition of the UE from a disconnected state to a connected state, or after the transition of the UE from a disconnected state to a connected state, report any of the following measurement results to the network-side device:

[0047] Measurement results of the first candidate cell;

[0048] The measurement results of the neighboring cells and / or the UE's current serving cell.

[0049] Secondly, a method for connecting multicast / broadcast MBS services is provided, applied to network-side equipment. This method includes:

[0050] The UE sends MBS-related configuration information, which is used by the UE to determine whether the first candidate cell supports MBS services.

[0051] The MBS-related configuration information includes: neighbor cell information that does not support MBS services, and the neighbor cell information includes: the neighbor cell identifier and / or the neighbor cell version identifier.

[0052] In one implementation, the method further includes:

[0053] Receive any one of the following measurement results reported by the UE:

[0054] Measurement results of the first candidate cell;

[0055] Measurement results of neighboring cells and / or the UE's current serving cell;

[0056] Perform any of the following based on the received measurement information:

[0057] Make a switching decision;

[0058] MBS services that are not supported for transmission in the first candidate cell are converted to unicast transmission.

[0059] Thirdly, a multicast broadcast MBS service connection device is provided, applied to a user equipment (UE), the device comprising:

[0060] The processing module is used to determine a first candidate cell; and is also used to trigger the UE to switch from a disconnected state to a connected state if the first candidate cell does not support MBS services.

[0061] The receiving module is used to continue receiving MBS services via unicast.

[0062] Fourthly, a multicast broadcast MBS service connection device is provided, applied to network-side equipment, the device comprising:

[0063] The sending module is used to send MBS-related configuration information to the UE, and the MBS-related configuration information is used by the UE to determine whether the first candidate cell supports MBS service.

[0064] The MBS-related configuration information includes: neighbor cell information that does not support MBS services, and the neighbor cell information includes: the neighbor cell identifier and / or the neighbor cell version identifier.

[0065] Fifthly, a user equipment is provided, the equipment comprising:

[0066] Memory, used to store computer programs;

[0067] Transceiver, used to send and receive data under the control of the processor;

[0068] A processor is configured to read and execute a computer program from the memory to implement the multicast broadcast MBS service connection method shown in the first aspect of this application.

[0069] Sixthly, a network-side device is provided, comprising:

[0070] Memory, used to store computer programs;

[0071] Transceiver, used to send and receive data under the control of the processor;

[0072] A processor is configured to read and execute a computer program from the memory to implement the multicast broadcast MBS service connection method shown in the second aspect of this application.

[0073] In a seventh aspect, a processor-readable storage medium is provided, the processor-readable storage medium storing a computer program, the computer program being used to cause a processor to execute and implement the multicast broadcast MBS service connection method shown in the first aspect of this application.

[0074] Eighthly, a processor-readable storage medium is provided, the processor-readable storage medium storing a computer program for causing a processor to execute and implement the multicast broadcast MBS service connection method shown in the second aspect of this application.

[0075] The beneficial effects of the technical solution provided in this application are:

[0076] If the UE may reselect a cell that does not support MBS service, the UE will be triggered to switch from a disconnected state to a connected state and continue to receive MBS service via unicast, so as to realize the continuation of MBS service and avoid MBS service interruption. Attached Figure Description

[0077] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below.

[0078] Figure 1 A schematic diagram illustrating a multicast broadcast MBS service connection method provided in an embodiment of this application;

[0079] Figure 2 A flowchart illustrating a multicast broadcast MBS service connection method provided in another embodiment of this application;

[0080] Figure 3 A flowchart illustrating a multicast broadcast MBS service connection method provided in another embodiment of this application;

[0081] Figure 4 A structural block diagram of a user equipment provided in an embodiment of this application;

[0082] Figure 5 A structural block diagram of a network-side device provided in an embodiment of this application;

[0083] Figure 6 This is a schematic diagram of the structure of a network-side device provided in an embodiment of this application;

[0084] Figure 7 This is a schematic diagram of the structure of a user equipment provided in an embodiment of this application. Detailed Implementation

[0085] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting the invention.

[0086] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0087] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0088] The technical solutions provided in this application can be applied to various systems, especially 5G systems. For example, applicable systems include Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Long Term Evolution Advanced (LTE-A), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), and 5G New Radio (NR). All of these systems include terminal equipment and network-side equipment. The systems may also include a core network component, such as Evolved Packet System (EPS) and 5G system (5GS).

[0089] First, let's introduce and explain several terms used in this application:

[0090] The terminal devices involved in the embodiments of this application can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in a 5G system, a terminal device can be called User Equipment (UE). Wireless terminal devices can communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, for example, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the RAN. Examples include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device, but is not limited to these terms in the embodiments of this application.

[0091] The network-side equipment involved in this application embodiment can be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, a base station may also be called an access point, or a device in the access network that communicates with wireless terminal devices through one or more sectors on the air interface, or other names. The network-side equipment can be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network-side equipment can also coordinate the attribute management of the air interface.

[0092] For example, the network-side equipment involved in the embodiments of this application can be a base transceiver station (BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a network-side device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), an evolved network-side device (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of this application. In some network structures, the network-side equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and distributed unit may also be geographically separated.

[0093] Network-side equipment and terminal equipment can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multiple-user MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, and can also be diversity transmission, precoding transmission, or beamforming transmission, etc.

[0094] Secondly, the relevant technologies involved in this application will be introduced and explained:

[0095] (1) UE receives multicast broadcast MBS service.

[0096] MBS services can be transmitted in the following two modes:

[0097] Transmission Mode 1: The UE is only allowed to receive multicast configuration information via dedicated RRC signaling in connected mode, and to receive MBS services in connected mode;

[0098] Transmission Mode 2: In the disconnected state (idle / inactive state), the UE receives broadcast configuration information through the relevant control signaling of the Multicast Control Channel (MCCH) and also receives broadcast services in the disconnected state. When the UE enters the connected state, it can still receive broadcast configuration information and broadcast services through the relevant control signaling of the MCCH.

[0099] If multicast services transmitted in transmission mode 1 are suspended, the UE is allowed to enter a disconnected state (idle state / inactive state) to save power. When multicast services need to continue, the network will send a group paging message to instruct the UE to re-enter the connected state to receive the relevant multicast services.

[0100] Obviously, when the UE is in a disconnected state (idle / inactive state), it is only allowed to receive broadcast services sent using transmission mode 2, and cannot receive multicast services. In other words, there is no mechanism for a disconnected state (idle / inactive state) UE to receive multicast services.

[0101] (2) UE receiving MBS service in disconnected state (idle state / inactive state)

[0102] With the widespread adoption of MBS services, if many UEs need to receive multicast services, keeping all UEs in the connected state would place a significant load on the network. Therefore, a method is proposed for UEs to receive multicast services in a disconnected state (idle / inactive state), with the following two options:

[0103] Method 1: Continue to use the above transmission mode 1, that is: the UE receives multicast configuration information through dedicated RRC signaling in the disconnected state, and receives multicast services in the disconnected state;

[0104] Method 2: After entering the disconnected state, switch to transmission mode 2, that is: in the disconnected state (idle state / inactive state), the UE receives multicast configuration information through the relevant control signaling of the Multicast Control Channel (MCCH) and receives multicast services in the disconnected state.

[0105] If the transmission mode 1 method is continued, the UE will not delete the multicast configuration information of transmission mode 1 received in the connected state after entering the disconnected state, and will continue to receive multicast services.

[0106] If the UE moves to another cell, the UE needs to re-enter the connected state before it can continue to receive the configuration information of the multicast service in the new cell to ensure the continuous reception of the service.

[0107] If the method of switching to transmission mode 2 after entering the disconnected state is adopted, the UE needs to continue to receive the configuration information content and configuration information update instruction of the multicast service according to the method of transmission mode 2 after entering the disconnected state.

[0108] However, if the UE's current cell (hereinafter referred to as the UE's current serving cell, or the local cell, or the local area) allows the UE to receive multicast services in a disconnected state, but neighboring cells do not support MBS or multicast services at all, or only support the UE to receive multicast services in a connected state, then if a cell reselection occurs while the UE is receiving MBS in a disconnected state, the MBS service will be interrupted if the reselected cell does not support MBS services at all, or only supports the UE to receive MBS services in a connected state.

[0109] Therefore, the multicast broadcast MBS service continuation method provided in this application embodiment can trigger the UE to switch from a non-connected state to a connected state if the UE's possible cell reselection does not support MBS service, and continue to receive MBS service through unicast, thereby avoiding MBS service interruption and realizing MBS service continuation during UE cell reselection.

[0110] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0111] This application provides a method for connecting multicast broadcast MBS services, applied to user equipment (UE), such as... Figure 1 As shown, the method includes:

[0112] S101. Determine the first candidate cell;

[0113] S102. If the first candidate cell does not support MBS service, then the UE is triggered to switch from the non-connected state to the connected state.

[0114] S103. Continue to receive MBS services via unicast.

[0115] In other words, in this embodiment, if the candidate cell of the UE does not support MBS service, the UE is triggered to switch from a disconnected state to a connected state and continue to receive MBS service via unicast, so as to realize the continuation of MBS service and avoid MBS service interruption.

[0116] Specifically, in this embodiment, not supporting MBS services includes not supporting all MBS services, not supporting receiving MBS services in a non-connected state, or one or more of these.

[0117] In one possible implementation, the method further includes:

[0118] S100. Receive MBS-related configuration information sent by the network-side device, wherein the MBS-related configuration information includes: neighbor cell information that does not support MBS service, and the neighbor cell information includes: the neighbor cell identifier and / or the neighbor cell version identifier;

[0119] The first candidate cell is determined to not support MBS services through the following methods:

[0120] Based on the MBS-related configuration information, it is determined that the first candidate cell does not support MBS services.

[0121] Specifically, in this embodiment, if the identifier and / or version identifier of the first candidate cell are included in the MBS-related configuration information, then it is determined that the first candidate cell does not support MBS services.

[0122] In some optional embodiments, the MBS-related configuration information may include: neighbor cell information that does not support MBS services for non-connected UEs.

[0123] Specifically, in this embodiment, the MBS-related configuration information may include at least one or more of the following:

[0124] Identifiers of cells that do not support MBS services on each frequency point;

[0125] Identifiers of neighboring cells that do not support MBS services for non-connected UEs on each frequency point;

[0126] Version identifier of neighboring cells that do not support MBS services on each frequency point;

[0127] Version identifier of neighboring cells that do not support MBS services for non-connected UEs on each frequency point.

[0128] For example, in this embodiment, there are 20 neighboring cells on a certain frequency point, and the MBS-related configuration information configures the information of 10 of these 20 neighboring cells that do not support MBS services.

[0129] If the measurement result of neighboring cell A meets the threshold conditions (the threshold may include: the threshold in the MBS related configuration information, the threshold preset by the UE, and the threshold in the existing re-evaluation rules), and neighboring cell A is one of the 10 cells that do not support MBS services, then a state switch is triggered, that is, the UE is triggered to switch from the non-connected state to the connected state.

[0130] In another possible implementation, step S101 may specifically include:

[0131] S1011. Measure the neighboring cells of the UE's current serving cell;

[0132] S1012. Determine a first candidate cell based on the measurement results of the neighboring cells; or, determine a first candidate cell based on the measurement results of the neighboring cells and the measurement results of the UE's current serving cell.

[0133] Specifically, in one optional embodiment, the MBS-related configuration information further includes: a first measurement threshold for neighboring cells. Then, in step S1012, determining the first candidate cell based on the measurement results of the neighboring cells can specifically include the following methods:

[0134] Method a1: Based on the measurement results of the neighboring cells and the MBS-related configuration information, select and determine the cells whose measurement results are higher than the first measurement threshold of the neighboring cells as the first candidate cells from the measured neighboring cells.

[0135] In other words, when the measurement result of neighboring cell A is higher than the first measurement threshold of neighboring cells in the MBS-related configuration information, neighboring cell A is determined as the first candidate cell.

[0136] The second method a2: Based on the measurement results of the neighboring cells, select and determine the cells whose measurement results are higher than a preset threshold from the measured neighboring cells as the first candidate cells.

[0137] In other words, when the measurement result of neighboring cell A is higher than the preset threshold, neighboring cell A is determined as the first candidate cell.

[0138] It should be noted that the preset threshold can be a measurement threshold for neighboring cells set in advance by the UE, or a measurement threshold determined by the UE according to the cell reselection evaluation rules.

[0139] In another optional embodiment, the MBS-related configuration information may further include: a scaling value related to MBS, wherein the first measurement threshold can be adjusted according to the scaling value related to MBS. The scaling value can also be called an offset, that is: the first measurement threshold can be offset according to the offset related to MBS.

[0140] In this embodiment, step S101 may further include S1020 before S1021, specifically,

[0141] S1020 may include: adjusting the first measurement threshold of the neighboring cell based on the scaling value related to MBS, then in the first mode a1, based on the measurement results of the neighboring cell and the MBS-related configuration information, selecting the cell whose measurement result is higher than the adjusted first measurement threshold of the neighboring cell from the measured neighboring cells as the first candidate cell.

[0142] S1020 may also include: adjusting the first measurement threshold in the cell reselection evaluation rule based on the scaling value associated with MBS, then in the second method a2, based on the measurement results of the neighboring cells, selecting from the measured neighboring cells the cell whose measurement result is higher than the first measurement threshold in the adjusted cell reselection evaluation rule as the first candidate cell.

[0143] For example, in this embodiment, assuming the first measurement threshold is 200 and the scaling value associated with MBS is 50, the first measurement threshold can be adjusted to 250; if the scaling value associated with MBS is -20, the first measurement threshold can be adjusted to 180. Alternatively, if the offset associated with MBS is 50, the threshold can be offset to 250; if the offset associated with MBS is -20, the threshold can be offset to 180.

[0144] Normally, in disconnected mode, the UE performs measurements on the cell and uses the measurement results to evaluate cell reselection. When the reselected cell meets the evaluation conditions in the cell reselection evaluation rules, the UE initiates a cell reselection process with neighboring cells that meet the conditions.

[0145] However, to avoid the problem of MBS service interruption caused by the UE initiating cell reselection for cells that do not support MBS or do not support MBS for non-connected UEs, this application proposes the following: For MBS cells that do not support MBS or do not support MBS for non-connected UEs, the cell reselection evaluation rule can be used as the condition to trigger the UE's state handover. That is, when a cell meets the evaluation conditions in the cell reselection evaluation rule, it is identified as a candidate cell, but cell reselection is not initiated directly; instead, the UE's state handover process is initiated. This allows the UE to enter the connected state in the original cell and then enter the target cell through handover, converting the MBS service to unicast transmission to continue receiving the MBS service.

[0146] Specifically, in this embodiment, the network sends the identifiers of each frequency point or cells on the frequency point that do not support MBS services at all or do not support MBS services in the non-connected state to the UE via broadcast information or dedicated signaling. The UE can fully reuse the evaluation formula in the existing cell reselection evaluation rules. When the frequency point or neighboring cells on the frequency point given by the network meet the evaluation conditions in the cell reselection evaluation rules, the connection is established / restored.

[0147] Alternatively, when reusing the evaluation formula in the cell reselection evaluation rules, the MBS-related scaling value (also known as the offset) can be considered. For example, the MBS-related scaling value can be used to adjust the relevant parameters in the cell reselection evaluation formula so that the UE initiates RRC connection establishment / recovery before switching to a neighboring cell that meets the actual evaluation conditions (a neighboring cell that meets the actual evaluation conditions is a neighboring cell that meets the evaluation conditions as determined by the evaluation formula in the existing cell reselection evaluation rules). This avoids situations such as RRC establishment / recovery failure in the local area due to poor signal in the local area.

[0148] In another optional embodiment, the MBS-related configuration information may further include: a first measurement threshold for neighboring cells and a second measurement threshold for the UE's current serving cell. Then, in step S1012, determining the first candidate cell based on the measurement results of the neighboring cells and the measurement results of the UE's current serving cell can specifically include the following methods:

[0149] Method 1: If the measurement result of the UE's current serving cell is lower than the second measurement threshold, based on the measurement results of the neighboring cells and the MBS-related configuration information, select and determine the cell whose measurement result is higher than the first measurement threshold of the neighboring cells as the first candidate cell from the measured neighboring cells.

[0150] The second method b2: If the measurement result of the UE's current serving cell is lower than the second measurement threshold, based on the measurement results of the neighboring cells, select and determine the cell whose measurement result is higher than the preset threshold from the measured neighboring cells as the first candidate cell.

[0151] In other words, in this embodiment, the network may configure the UE with identifiers / version identifiers for neighboring cells on each frequency point or frequency point that do not support MBS services at all, and / or identifiers / version identifiers for neighboring cells on each frequency point or frequency point that do not support MBS services for non-connected UEs. After receiving the cell identifier information that does not support MBS services, the UE uses the measurement information of the neighboring cells in the non-connected state, or the measurement information of the neighboring cells and the current cell (i.e., the UE's current serving cell) to perform cell reselection evaluation. When the measurement result of the cell that does not support MBS services reaches the UE threshold condition, the UE is triggered to switch from the non-connected state to the connected state.

[0152] In the above embodiments, the MBS-related configuration information is transmitted in any of the following ways:

[0153] System information;

[0154] MBS configuration information;

[0155] RRC dedicated signaling.

[0156] Specifically, in this embodiment, the first measurement threshold can be the first measurement threshold of the measurement results of each frequency point or the neighboring cells on each frequency point. The first measurement threshold of the measurement results of each frequency point refers to the common threshold of all relevant cells on each frequency point, that is, all relevant cells on each frequency point have the same threshold; the first measurement threshold of the measurement results of the neighboring cells on each frequency point refers to the threshold corresponding to each relevant cell on each frequency point.

[0157] The thresholds given may be the same or different for different relevant cells. These relevant cells are those that do not support MBS services on any frequency point, or those that do not support MBS services for non-connected UEs.

[0158] The method of transmitting the MBS-related configuration information through system information includes at least one or more of the following:

[0159] The first measurement threshold carries the measurement results of the current frequency point or the neighboring cell on the current frequency point in the broadcast system information block SIB3;

[0160] The first measurement threshold that carries the measurement results of the inter-frequency point or the neighboring cell on the inter-frequency point in the broadcast SIB4;

[0161] The first measurement threshold that carries measurement results of different technology frequencies or neighboring cells on different technology frequencies in the broadcast SIB5;

[0162] The first measurement threshold carries the measurement results of each frequency point or neighboring cells at each frequency point in the SIB dedicated to MBS.

[0163] In other words, in this embodiment, MBS-related configuration information can be transmitted through system information, MBS configuration information, or RRC dedicated signaling. When transmitted through system information, the corresponding system information block (SIB) can be selected for transmission based on different frequency point types, or it can be transmitted in a dedicated SIB for MBS.

[0164] It should be noted that, in this embodiment, the measurement result can be a measurement of the reference signal received power (RSRP), the reference signal received quality (RSRQ), or the signal to interference and noise ratio (SINR).

[0165] In other words, in this embodiment, the UE receives information from the network that neighboring cells / frequency points do not support or do not support MBS services for non-connected UEs, and performs cell reselection evaluation in the current cell. Before the UE switches to a neighboring cell that does not support or does not support MBS services for non-connected UEs, the UE transitions from a non-connected state to a connected state, so that when the UE subsequently moves to the aforementioned neighboring cell, the UE's multicast / MBS services can be received via unicast.

[0166] In another possible implementation, the MBS-related configuration information further includes: indication information, which is used to indicate whether a specified cell supports MBS services;

[0167] Then, based on the MBS-related configuration information, it is determined that the first candidate cell does not support MBS services, including:

[0168] Based on the indication information, at least one neighboring cell that does not support the MBS service that the UE is currently receiving or is interested in is determined from the neighboring cells of the UE's current serving cell;

[0169] If the first candidate cell is included in the at least one neighboring cell, then it is determined that the first candidate cell does not support MBS service.

[0170] In other words, based on the indication information in the MBS-related configuration information, one or more neighboring cells that do not support the MBS service that the UE is currently receiving or interested in are selected from the neighboring cells of the UE's current serving cell. Then, the first candidate cell is determined from the selected cells, and the first candidate cell is determined to not support the MBS service with finer granularity.

[0171] In some embodiments, the indication information may include one or more of the following:

[0172] Indication information used to indicate whether each MBS service is supported on each frequency point;

[0173] Indication information used to indicate whether each MBS service is supported by neighboring cells on each frequency point.

[0174] In some alternative embodiments, the MBS-related configuration information may specifically include: indication information for indicating whether each MBS service of a non-connected UE is supported, wherein the indication information may include one or more of the following:

[0175] Indication information used to indicate whether each MBS service of a non-connected UE is supported on each frequency point;

[0176] Indication information used to indicate whether each MBS service of a non-connected UE is supported by neighboring cells on each frequency point.

[0177] In other words, in this embodiment, if the MBS service currently being received by the UE is not supported in the relevant neighboring cells, or the MBS service that the UE is interested in is not supported in the relevant neighboring cells, or the MBS service that the non-connected UE is currently receiving is not supported in the relevant neighboring cells, or the MBS service that the non-connected UE is interested in is not supported in the relevant neighboring cells, then the measurement results of each frequency point neighboring cell, as well as the first measurement threshold and the second measurement threshold, are used to trigger an evaluation (e.g., it can be called: MBS connection establishment evaluation). The evaluation method is any of the following:

[0178] The first method: If the measurement result of a neighboring cell is higher than the corresponding first measurement threshold, then the RRC connection establishment / recovery is triggered;

[0179] The second method is to compare the measurement results of the current UE's local cell with the relevant second threshold. If the measurement results of the local cell are lower than the second threshold and the measurement results of a neighboring cell are higher than the corresponding first measurement threshold, the RRC connection establishment / recovery is triggered.

[0180] If a neighboring cell supports the MBS service that the current UE is receiving, or supports the MBS service that the current UE is interested in, or supports the MBS service that the current disconnected UE is currently receiving, or supports the MBS service that the current disconnected UE is interested in, then no evaluation will be initiated for that neighboring cell. Subsequently, after the UE moves to that neighboring cell from the disconnected state, it can continue receiving multicast / MBS services from the disconnected state.

[0181] In the above embodiments, the transition of the UE from a disconnected state to a connected state includes:

[0182] Trigger the process of establishing a Radio Resource Control (RRC) connection with the first candidate cell; or,

[0183] Trigger the process of restoring the RRC connection with the UE's current serving cell.

[0184] The process of triggering the establishment / restoration of a Radio Resource Control (RRC) connection includes:

[0185] RRC connection establishment / recovery is triggered directly by the AS layer; or,

[0186] The AS requests the NAS to initiate / restore an RRC connection triggered by the NAS.

[0187] In some embodiments, the process of triggering the establishment of a Radio Resource Control (RRC) connection with the first candidate cell includes:

[0188] Send an RRC establishment request message to the first candidate cell, the RRC establishment request message carrying a reason value related to MBS;

[0189] The process of triggering the restoration of the RRC connection with the UE's current serving cell includes:

[0190] Send an RRC recovery request message to the current serving cell, the RRC recovery request message carrying a cause value related to MBS.

[0191] Specifically, the RRC establishment / restore request message during the establishment / restore of RRC connection carries a cause value related to MBS, such as: establishing MBS point-to-point (PTP) transmission, or establishing connected point-to-multipoint (PTM) transmission.

[0192] In some alternative embodiments, the method further includes:

[0193] During the transition of the UE from a disconnected state to a connected state, or after the transition of the UE from a disconnected state to a connected state, report any of the following measurement results to the network-side device:

[0194] Measurement results of the first candidate cell;

[0195] The measurement results of the neighboring cells and / or the UE's current serving cell.

[0196] In other words, in this embodiment, the UE may report the measurement results of the first candidate cell, or the measurement results of the neighboring cells and / or the local cell, to the network side during the transition from a disconnected state to a connected state (RRC establishment / recovery), or after RRC establishment / recovery, so that the network side can make a handover decision based on the above information, or convert the MBS service that the first candidate cell does not support to be transmitted into unicast mode to continue the reception of the MBS service.

[0197] This application provides a method for connecting multicast broadcast MBS services, applied to network-side devices, such as... Figure 2 As shown, the method includes:

[0198] S201. Send MBS-related configuration information to the UE. The MBS-related configuration information is used by the UE to determine whether the first candidate cell supports MBS service.

[0199] The MBS-related configuration information includes: neighbor cell information that does not support MBS services, and the neighbor cell information includes: the neighbor cell identifier and / or the neighbor cell version identifier.

[0200] Specifically, in this embodiment, the MBS-related configuration information may include at least one or more of the following:

[0201] Identifiers of neighboring cells that do not support MBS services on each frequency point;

[0202] Identifiers of neighboring cells that do not support MBS services for non-connected UEs on each frequency point;

[0203] Version identifier of neighboring cells that do not support MBS services on each frequency point;

[0204] Version identifier of neighboring cells that do not support MBS services for non-connected UEs on each frequency point.

[0205] In another possible implementation, the method further includes:

[0206] S202. Receive any one of the following measurement results reported by the UE:

[0207] Measurement results of the first candidate cell;

[0208] Measurement results of neighboring cells and / or the UE's current serving cell;

[0209] S203. Perform any of the following based on the received measurement results:

[0210] Make a switching decision;

[0211] MBS services that are not supported for transmission in the first candidate cell are converted to unicast transmission.

[0212] Specifically, in this embodiment, the first candidate cell satisfies any one of the following threshold conditions:

[0213] The measurement result of the first candidate cell is higher than the first measurement threshold, wherein the first measurement threshold is the first measurement threshold of the measurement results of neighboring cells also included in the MBS-related configuration information; optionally, the first measurement threshold is the first measurement threshold of the measurement results of each frequency point or neighboring cells on each frequency point also included in the MBS-related configuration information.

[0214] The measurement result of the first candidate cell is higher than a preset threshold, wherein the preset threshold includes a measurement threshold determined according to the cell reselection evaluation rules.

[0215] In other words, the multicast broadcast MBS service handover method provided in this application embodiment allows the network side to receive the measurement results of the first candidate cell reported by the UE, or the measurement results of the neighboring cells and / or the local cell, and make a handover decision based on the above information, or convert the MBS service that the first candidate cell does not support transmission into unicast mode transmission to continue the reception of the MBS service.

[0216] The following is in conjunction with the appendix Figure 3 This application provides a detailed description of the technical solution for a multicast broadcast MBS service continuity method according to embodiments of the present application. For example... Figure 3 The method shown includes:

[0217] S301. The network-side device gNB sends MBS-related configuration information to the UE.

[0218] Specifically, in this embodiment, the MBS-related configuration information may include at least one of the following:

[0219] Neighbor cell identifiers that do not support MBS services on each frequency point;

[0220] Version identifier of neighboring cells that do not support MBS services on each frequency point;

[0221] Neighbor cell identifiers that do not support MBS services for non-connected UEs on each frequency point;

[0222] Version identifier of neighboring cells that do not support MBS services for non-connected UEs on each frequency point;

[0223] Threshold information for each frequency point or neighboring cells on each frequency point, such as: the first measurement threshold;

[0224] The threshold information for this community, such as: the second measurement threshold.

[0225] The aforementioned MBS-related configuration information can be transmitted via system information, MBS configuration information, or RRC dedicated signaling. When transmitted via system information, the threshold information can be sent in the following ways, including but not limited to:

[0226] The first method is to provide frequency-level threshold information for the current frequency, different frequency, and different technology frequency in the SIB3 / 4 / 5 broadcast of the cell. That is, all relevant cells on the frequency will use this threshold information for subsequent evaluation.

[0227] Specifically, in this embodiment, the broadcast system information block SIB3 carries a first measurement threshold for the measurement results of the current frequency point; the broadcast SIB4 carries a first measurement threshold for the measurement results of the different frequency point; and the broadcast SIB5 carries a first measurement threshold for the measurement results of the different technology frequency point.

[0228] In the first method described above, the first measurement threshold of the measurement results at each frequency point refers to the common threshold of all relevant cells at each frequency point, that is: all relevant cells at each frequency point have the same threshold.

[0229] The second method is to provide frequency-level threshold information for each relevant cell on each SIB3 / 4 / 5 frequency point broadcast in the cell.

[0230] Specifically, in this embodiment, the broadcast system information block SIB3 carries a first measurement threshold for the measurement results of neighboring cells at the current frequency point; the broadcast SIB4 carries a first measurement threshold for the measurement results of neighboring cells at different frequency points; and the broadcast SIB5 carries a first measurement threshold for the measurement results of neighboring cells at different technology frequency points.

[0231] In the second method described above, the first measurement threshold of the measurement results of neighboring cells at each frequency point refers to the threshold corresponding to each relevant cell at each frequency point.

[0232] The third method is to carry threshold information for each frequency point or neighboring cells on each frequency point in the SIB dedicated to MBS.

[0233] It should be noted that in this embodiment, the thresholds given may be the same or different for different relevant cells. The relevant cells are those that do not support MBS services on each frequency point, or those that do not support MBS services for non-connected UEs.

[0234] The MBS-related configuration information may also include: MBS-related scaling values ​​or offsets. Specifically, based on the UE's moving speed, the MBS-related scaling values ​​or offsets can be used to scale or add offsets to the values ​​of the above-mentioned threshold information.

[0235] S302. The UE uses the measurement results of neighboring cells at each frequency point, as well as the above threshold information, for evaluation. The evaluation method is as follows:

[0236] Method 1: If the measurement result of a neighboring cell is higher than the first measurement threshold, then trigger the establishment / recovery of the RRC connection;

[0237] Method 2: Compare the measurement result of the current UE's local cell with the second measurement threshold. If the measurement result of the local cell is less than the second measurement threshold and the measurement result of a neighboring cell is higher than the first measurement threshold, then trigger RRC connection establishment / recovery.

[0238] Specifically, in this embodiment, the measurement quantity used for the measurement result can be RSRP, RSRQ, or SINR, etc.

[0239] S303. After the evaluation conditions are met, the UE initiates the RRC establishment / recovery process.

[0240] Specifically, in this embodiment, the RRC connection establishment / recovery can be triggered directly by the AS layer, or the AS can request the NAS and the NAS can still trigger the RRC connection establishment / recovery based on existing procedures. The specific process can be implemented using relevant existing technologies, which will not be elaborated here for the sake of brevity.

[0241] Alternatively, in this embodiment, the UE may carry MBS-related cause values ​​during RRC establishment / recovery, such as establishing MBS PTP or establishing connected state PTM.

[0242] S304. During or after the RRC establishment / recovery process, the UE may report the measurement results of neighboring cells that meet the evaluation conditions, or all measurement results of the UE in the non-connected state, to the network-side equipment.

[0243] Specifically, in this embodiment, if the measurement result of neighboring cell A is higher than the first measurement threshold, the measurement result of neighboring cell A can be reported to the network-side device. All measurement results of the UE in the disconnected state can include the measurement results of the measured neighboring cells and the current cell.

[0244] S305. After the network side establishes / restores the connection with the UE, it can, based on the measurement results reported by the UE, convert MBS services that cannot be transmitted in the potential target cell into unicast transmission in advance in this cell, or assist the network side in making a handover decision.

[0245] In other words, in this embodiment, the UE receives information from the network that neighboring cells / frequency points do not support or do not support MBS services for non-connected UEs, and performs cell reselection evaluation in the current cell. Before the UE switches to a neighboring cell that does not support or does not support MBS services for non-connected UEs, the UE transitions from a non-connected state to a connected state, so that when the UE subsequently moves to the aforementioned neighboring cell, the UE's multicast / MBS services can be received via unicast.

[0246] Based on the same inventive concept, embodiments of this application provide a multicast broadcast MBS service connection device, applied to user equipment. The device 40 includes: a processing module 401 and a receiving module 402, wherein...

[0247] The processing module 401 is used to determine a first candidate cell; and is also used to trigger the UE to switch from a disconnected state to a connected state if the first candidate cell does not support MBS service.

[0248] The receiving module 402 is used to continue receiving MBS services via unicast.

[0249] In some embodiments, the lack of support for MBS services includes one or more of the following: not supporting all MBS services and not supporting receiving MBS services in a disconnected state.

[0250] In some embodiments, the receiving module 402 is further configured to: receive MBS-related configuration information sent by the network-side device, wherein the MBS-related configuration information includes: neighbor cell information that does not support MBS service, and the neighbor cell information includes: the identifier of the neighbor cell and / or the version identifier of the neighbor cell;

[0251] The processing module is specifically used for:

[0252] The first candidate cell is determined to not support MBS services through the following methods:

[0253] Based on the MBS-related configuration information, it is determined that the first candidate cell does not support MBS services.

[0254] In other embodiments, the MBS-related configuration information further includes: indication information, which is used to indicate whether a specified cell supports MBS services;

[0255] When the processing module 401 determines, based on the MBS-related configuration information, that the first candidate cell does not support MBS services, it is specifically used for:

[0256] Based on the indication information, at least one neighboring cell that does not support the MBS service that the UE is currently receiving or is interested in is determined from the neighboring cells of the UE's current serving cell;

[0257] If the first candidate cell is included in the at least one neighboring cell, then it is determined that the first candidate cell does not support MBS service.

[0258] In other embodiments, when determining the first candidate cell, the processing module 401 is specifically used for:

[0259] Measure the neighboring cells of the UE's current serving cell;

[0260] A first candidate cell is determined based on the measurement results of the neighboring cells; or, a first candidate cell is determined based on the measurement results of the neighboring cells and the measurement results of the UE's current serving cell.

[0261] In other embodiments, the MBS-related configuration information further includes: a first measurement threshold for neighboring cells. When the processing module 401 determines a first candidate cell based on the measurement results of the neighboring cells, it is specifically used for:

[0262] Based on the measurement results of the neighboring cells and the MBS-related configuration information, cells whose measurement results are higher than a first measurement threshold of the neighboring cells are selected and determined as first candidate cells from the measured neighboring cells.

[0263] In other embodiments, the MBS-related configuration information further includes: a scaling value related to MBS, and the processing module 401 is further configured to:

[0264] Based on the scaling value associated with MBS, the first measurement threshold of the neighboring cell is adjusted to obtain the adjusted first measurement threshold of the neighboring cell;

[0265] Based on the measurement results of the neighboring cells and the MBS-related configuration information, cells whose measurement results are higher than the adjusted first measurement threshold of the neighboring cells are selected and determined as the first candidate cells from the measured neighboring cells.

[0266] In other embodiments, when determining the first candidate cell based on the measurement results of the neighboring cells, the processing module 401 is specifically used for:

[0267] Based on the measurement results of the neighboring cells, cells whose measurement results are higher than a preset threshold are selected and determined as the first candidate cells from the measured neighboring cells;

[0268] The preset threshold includes a measurement threshold determined according to the cell reselection evaluation rules.

[0269] In other embodiments, the MBS-related configuration information further includes: a scaling value related to the MBS, and the processing module is further configured to:

[0270] Based on the scaling value related to MBS, the preset threshold is adjusted to obtain the adjusted preset threshold;

[0271] Based on the measurement results of the neighboring cells, cells whose measurement results are higher than the adjusted preset threshold are selected and determined as the first candidate cells from the measured neighboring cells.

[0272] In other embodiments, the MBS-related configuration information is transmitted in any of the following ways:

[0273] System information;

[0274] MBS configuration information;

[0275] RRC dedicated signaling;

[0276] The method of transmitting the configuration information through system information includes at least one or more of the following:

[0277] The first measurement threshold carries the measurement results of the current frequency point or the neighboring cell on the current frequency point in the broadcast system information block SIB3;

[0278] The first measurement threshold that carries the measurement results of the inter-frequency point or the neighboring cell on the inter-frequency point in the broadcast SIB4;

[0279] The first measurement threshold that carries measurement results of different technology frequencies or neighboring cells on different technology frequencies in the broadcast SIB5;

[0280] The first measurement threshold carries the measurement results of each frequency point or neighboring cells at each frequency point in the SIB dedicated to MBS.

[0281] In the above embodiments, when the processing module 401 triggers the UE to transition from a disconnected state to a connected state, it is specifically used for:

[0282] Trigger the process of establishing a Radio Resource Control (RRC) connection with the first candidate cell; or,

[0283] Trigger the process of restoring the RRC connection with the UE's current serving cell.

[0284] Specifically, in this embodiment, triggering the establishment / restoration of a Radio Resource Control (RRC) connection includes:

[0285] RRC connection establishment / recovery is triggered directly by the AS layer; or,

[0286] The AS requests the NAS to initiate / restore an RRC connection triggered by the NAS.

[0287] In some optional embodiments, a sending module 403 is further included, configured to send an RRC establishment request message to the first candidate cell during the process of triggering the establishment of a Radio Resource Control (RRC) connection with the first candidate cell, wherein the RRC establishment request message carries a cause value related to MBS; or, configured to send an RRC recovery request message to the current serving cell during the process of triggering the recovery of an RRC connection with the UE's current serving cell, wherein the RRC recovery request message carries a cause value related to MBS.

[0288] In other embodiments, the sending module 403 is further configured to report any of the following measurement results to the network-side device during or after the RRC establishment / recovery process:

[0289] Measurement results of the first candidate cell;

[0290] The measurement results of the neighboring cells and / or the UE's current serving cell.

[0291] For details not described in the device provided in this application, please refer to [the relevant documentation]. Figure 1 and Figure 3 The methods provided in the illustrated embodiments and the beneficial effects that the user equipment provided in this application can achieve are the same as those described in the embodiments. Figure 1 and Figure 3 The methods provided in the illustrated embodiments are the same and will not be repeated here.

[0292] Based on the same inventive concept, this application also provides a multicast broadcast MBS service connection device, applied to network-side equipment. The device 50 includes: a sending module 501, wherein...

[0293] The sending module 501 is used to send MBS-related configuration information to the UE, wherein the MBS-related configuration information is used by the UE to determine whether the first candidate cell supports MBS service;

[0294] The MBS-related configuration information includes: neighbor cell information that does not support MBS services, and the neighbor cell information includes: the neighbor cell identifier and / or the neighbor cell version identifier.

[0295] In one possible implementation, it further includes: a receiving module 502, configured to receive any of the following measurement results reported by the UE:

[0296] Measurement results of the first candidate cell;

[0297] Measurement results of neighboring cells and / or the UE's current serving cell;

[0298] The processing module is further configured to: perform any of the following based on the received measurement results:

[0299] Make a switching decision;

[0300] MBS services that are not supported for transmission in the first candidate cell are converted to unicast transmission.

[0301] For details not described in the device provided in this application, please refer to [the relevant documentation]. Figure 2 and Figure 3 The methods provided in the illustrated embodiments and the beneficial effects that the network-side devices provided in this application can achieve are the same as those described above. Figure 2and Figure 3 The methods provided in the illustrated embodiments are the same and will not be repeated here.

[0302] Based on the same principle as the method provided in the embodiments of this application, an electronic device is provided in the embodiments of this application. The electronic device includes: a memory and a processor; at least one program, stored in the memory, is used to, when executed by the processor, compared with the prior art: if the possible reselected cell of the UE does not support MBS service, the UE is triggered to switch from a non-connected state to a connected state and continue to receive MBS service through unicast, so as to realize the continuation of MBS service and achieve the purpose of minimizing MBS service interruption.

[0303] An electronic device provided in this application embodiment can be a network-side device or a user device as described in the above embodiments.

[0304] In one alternative embodiment, a network-side device is provided, such as... Figure 6 As shown, Figure 6 The network-side device 60 shown includes a processor 603 and a memory 601. The processor 603 and the memory 601 are connected, for example, via a bus interface. Optionally, the network-side device 60 may further include a transceiver 602, which can be used for data interaction between the network-side device and other network-side devices, such as sending and / or receiving data. It should be noted that in practical applications, the transceiver 602 is not limited to one, and the structure of this network-side device 60 does not constitute a limitation on the embodiments of this application.

[0305] It should be understood that in the above embodiments, Figure 6 The bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 603 and memory represented by memory 601 together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 602 can be multiple elements, including transmitters and receivers, providing units for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, and other transmission media.

[0306] The processor 603 is responsible for managing the bus architecture and general processing, while the memory 602 can store the data used by the processor 603 when performing operations.

[0307] In another alternative embodiment, a user equipment is provided, such as Figure 7 As shown, Figure 7The user equipment 70 shown includes a processor 703 and a memory 701. The processor 703 and the memory 701 are connected, for example, via a bus interface. Optionally, the user equipment 70 may also include a transceiver 702, which can be used for data interaction between the user equipment and other user equipment, such as sending and / or receiving data. It should be noted that in practical applications, the transceiver 702 is not limited to one type, and the structure of the user equipment 70 does not constitute a limitation on the embodiments of this application.

[0308] It should be understood that in the above embodiments, Figure 7 The bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 703 and memory represented by memory 701 together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 702 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, and other transmission media.

[0309] The processor 703 is responsible for managing the bus architecture and general processing, while the memory 702 can store the data used by the processor 703 when performing operations.

[0310] Optionally, processor 403, and / or processor 703 may be a CPU (Central Processing Unit), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), or CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

[0311] The processor executes any of the methods described in the embodiments of this application by invoking a computer program stored in memory, according to the obtained executable instructions. The processor and memory may also be physically separated.

[0312] This application provides a computer-readable storage medium storing a computer program. When the program is run on a computer, it enables the computer to execute the corresponding content in the aforementioned method embodiments. Compared with the prior art, if the UE's possible cell reselection does not support MBS service, the UE is triggered to switch from a disconnected state to a connected state and continue to receive MBS service via unicast, thereby achieving MBS service continuity and minimizing MBS service interruption.

[0313] It should be noted that the division of units in the embodiments of this application is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0314] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0315] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0316] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0317] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0318] These processors can execute instructions that can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable device for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0319] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0320] The above description is only a partial embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for connecting multicast broadcast MBS services, characterized in that, Applied to a user equipment (UE), the method includes: Measure the neighboring cells of the UE's current serving cell; Receive MBS-related configuration information sent by the network-side device, wherein the MBS-related configuration information includes: scaling values ​​related to MBS; Based on the scaling value associated with MBS, the first measurement threshold of the neighboring cell is adjusted to obtain the adjusted first measurement threshold of the neighboring cell; or, based on the scaling value associated with MBS, the preset threshold is adjusted to obtain the adjusted preset threshold. Based on the measurement results of the neighboring cells and the adjusted threshold, the first candidate cell is determined; If the first candidate cell does not support MBS service, the UE is triggered to switch from a disconnected state to a connected state. Continue to receive MBS services via unicast.

2. The method according to claim 1, characterized in that, The phrase "not supporting MBS services" includes one or more of the following: not supporting all MBS services, not supporting receiving MBS services in a non-connected state.

3. The method according to claim 1 or 2, characterized in that, The MBS-related configuration information also includes: neighbor cell information that does not support MBS services, wherein the neighbor cell information includes: the neighbor cell identifier and / or the neighbor cell version identifier; The first candidate cell is determined to not support MBS services through the following methods: Based on the MBS-related configuration information, it is determined that the first candidate cell does not support MBS services.

4. The method according to claim 3, characterized in that, The MBS-related configuration information also includes: indication information, which is used to indicate whether a specified cell supports MBS services; Based on the MBS-related configuration information, it is determined that the first candidate cell does not support MBS services, including: Based on the indication information, at least one neighboring cell that does not support the MBS service that the UE is currently receiving or is interested in is determined from the neighboring cells of the UE's current serving cell; If the first candidate cell is included in the at least one neighboring cell, then it is determined that the first candidate cell does not support MBS service.

5. The method according to claim 1, characterized in that, The MBS-related configuration information also includes: the first measurement threshold of the neighboring cell; The step of determining the first candidate cell based on the measurement results of the neighboring cells and the adjusted threshold includes: Based on the measurement results of the neighboring cells and the MBS-related configuration information, cells whose measurement results are higher than the first measurement threshold of the adjusted neighboring cells are selected and determined as the first candidate cells from the measured neighboring cells.

6. The method according to claim 1, characterized in that, Based on the measurement results of the neighboring cells and the adjusted threshold, a first candidate cell is determined, including: Based on the measurement results of the neighboring cells, cells whose measurement results are higher than the adjusted preset threshold are selected and determined as the first candidate cells from the measured neighboring cells; The preset threshold includes a measurement threshold determined according to the cell reselection evaluation rules.

7. The method according to any one of claims 1-6, characterized in that, The MBS-related configuration information may be transmitted in any of the following ways: System information; MBS configuration information; RRC dedicated signaling.

8. The method according to any one of claims 1-6, characterized in that, The transition of the UE from a disconnected state to a connected state includes: Trigger the process of establishing a Radio Resource Control (RRC) connection with the first candidate cell; or, Trigger the process of restoring the RRC connection with the UE's current serving cell.

9. The method according to claim 8, characterized in that, The process of triggering the establishment of a Radio Resource Control (RRC) connection with the first candidate cell includes: Send an RRC establishment request message to the first candidate cell, the RRC establishment request message carrying a reason value related to MBS; The process of triggering the restoration of the RRC connection with the UE's current serving cell includes: Send an RRC recovery request message to the current serving cell, the RRC recovery request message carrying a cause value related to MBS.

10. The method according to any one of claims 1-6, characterized in that, The method further includes: During the transition of the UE from a disconnected state to a connected state, or after the transition of the UE from a disconnected state to a connected state, report any of the following measurement results to the network-side device: Measurement results of the first candidate cell; The measurement results of the neighboring cells and / or the UE's current serving cell.

11. A method for connecting multicast broadcast MBS services, characterized in that, Applied to network-side devices, the method includes: MBS-related configuration information is sent to the UE. The MBS-related configuration information is used by the UE to determine whether the first candidate cell supports MBS service. When it is determined that the first candidate cell does not support MBS service, the UE is triggered to switch from non-connected state to connected state and continue to receive MBS service through unicast. The MBS-related configuration information includes: scaling values ​​related to MBS; The scaling value associated with MBS is used to adjust the first measurement threshold of the neighboring cells of the UE's current serving cell, to obtain the adjusted first measurement threshold of the neighboring cells; or... The scaling value associated with MBS is used to adjust the preset threshold to obtain the adjusted preset threshold; The adjusted threshold is used to determine the first candidate cell.

12. The method according to claim 11, characterized in that, The MBS-related configuration information also includes: neighbor cell information that does not support MBS services, and the neighbor cell information includes: the neighbor cell identifier and / or the neighbor cell version identifier.

13. The method according to claim 11, characterized in that, The MBS-related configuration information also includes: indication information, which is used to indicate whether a specified cell supports MBS services.

14. The method according to any one of claims 11-13, characterized in that, The method further includes: Receive any one of the following measurement results reported by the UE: Measurement results of the first candidate cell; Measurement results of neighboring cells and / or the UE's current serving cell; Perform any of the following based on the received measurement results: Make a switching decision; MBS services that are not supported for transmission in the first candidate cell are converted to unicast transmission.

15. A multicast broadcast MBS service connection device, characterized in that, Applied to User Equipment (UE), including: The processing module is used to measure the neighboring cells of the UE's current serving cell; The receiving module is used to receive MBS-related configuration information sent by the network-side device. The MBS-related configuration information includes: scaling values ​​related to MBS. The processing module is further configured to adjust the first measurement threshold of the neighboring cell based on the scaling value related to MBS to obtain the adjusted first measurement threshold of the neighboring cell; or, based on the scaling value related to MBS, adjust the preset threshold to obtain the adjusted preset threshold. It is also used to determine a first candidate cell based on the measurement results of the neighboring cells and the adjusted threshold; and to trigger the UE to switch from a non-connected state to a connected state if the first candidate cell does not support MBS service. The receiving module is also used to continue receiving MBS services via unicast.

16. A multicast broadcast MBS service connection device, characterized in that, Applied to network-side devices, including: The sending module is used to send MBS-related configuration information to the UE. The MBS-related configuration information is used by the UE to determine whether the first candidate cell supports MBS service. When it is determined that the first candidate cell does not support MBS service, the UE is triggered to switch from a non-connected state to a connected state and continue to receive MBS service through unicast. The MBS-related configuration information includes: scaling values ​​related to MBS; The scaling value associated with MBS is used to adjust the first measurement threshold of the neighboring cells of the UE's current serving cell, to obtain the adjusted first measurement threshold of the neighboring cells; or... The scaling value associated with MBS is used to adjust the preset threshold to obtain the adjusted preset threshold; The adjusted threshold is used to determine the first candidate cell.

17. A user equipment, characterized in that, include: Memory, used to store computer programs; A transceiver is used to send and receive data under the control of a processor. Processor, configured to read the computer program in the memory and perform the following operations: Measure the neighboring cells of the UE's current serving cell; Receive MBS-related configuration information sent by the network-side device, wherein the MBS-related configuration information includes: scaling values ​​related to MBS; Based on the scaling value associated with MBS, the first measurement threshold of the neighboring cell is adjusted to obtain the adjusted first measurement threshold of the neighboring cell; or, based on the scaling value associated with MBS, the preset threshold is adjusted to obtain the adjusted preset threshold. Based on the measurement results of the neighboring cells and the adjusted threshold, the first candidate cell is determined; If the first candidate cell does not support MBS service, the UE is triggered to switch from a disconnected state to a connected state. Continue to receive MBS services via unicast.

18. A network-side device, characterized in that, include: Memory, used to store computer programs; A transceiver is used to send and receive data under the control of a processor. Processor, configured to read the computer program in the memory and perform the following operations: MBS-related configuration information is sent to the UE. The MBS-related configuration information is used by the UE to determine whether the first candidate cell supports MBS service. When it is determined that the first candidate cell does not support MBS service, the UE is triggered to switch from non-connected state to connected state and continue to receive MBS service through unicast. The MBS-related configuration information includes: scaling values ​​related to MBS; The scaling value associated with MBS is used to adjust the first measurement threshold of the neighboring cells of the UE's current serving cell, to obtain the adjusted first measurement threshold of the neighboring cells; or... The scaling value associated with MBS is used to adjust the preset threshold to obtain the adjusted preset threshold; The adjusted threshold is used to determine the first candidate cell.

19. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that causes a processor to perform the method of any one of claims 1-10, or to perform the method of any one of claims 11-14.

Images